煤油替代燃料燃烧反应骨架机理简化

Skeletal Reduction of Combustion Mechanism of Kerosene Surrogate Fuels

本文采用基于特征值分析的骨架机理简化方法,对于航空煤油替代燃料正癸烷(118组分527反应)和正丙基环己烷(106组分382反应)氧化反应机理进行了简化,分别得到68组分302反应和67组分250反应骨架机理。采用骨架机理进行了着火延迟和火焰传播速度动力学模拟,并与详细机理计算结果进行了对比,结果表明,骨架机理具有较高的计算精度,该方法对于高碳氢燃料的详细机理简化具有较好的效果。

Based on the characteristic value analysis simplified method,detailed oxidation reaction mechanism of kerosene surrogate fuels n-decane（118 species and 527 reactions） and n-propylcyclohexane（106 species and 382 reactions） were simplified and skeletal mechanism was respectively obtained which contains 68 species 302 reactions and 67 species 250 reactions.The ignition delay times and laminar flame speeds were simulated using the skeletal and detailed mechanisms and their simulation results were compared,the results shown that the skeletal mechanisms had high calculation precision,the method for simplification of high hydrocarbon fuels detailed mechanism was effective.